check that the version of __sync_sub_and_fetch that returns a value is supported...

[wxWidgets.git] / include / wx / string.h

diff --git a/include/wx/string.h b/include/wx/string.h
index bf297f6a9aab5d9711f69f1443004cf4e47bacab..2d79486f836222ee9c9e1080d84986d5c5c3666e 100644 (file)
--- a/include/wx/string.h
+++ b/include/wx/string.h
@@ -51,7 +51,7 @@
     #include <StringMgr.h>
 #endif
 
     #include <StringMgr.h>
 #endif
 

-#include "wx/wxcrt.h"       // for wxChar, wxStrlen() etc.
+#include "wx/wxcrtbase.h"   // for wxChar, wxStrlen() etc.

 #include "wx/strvararg.h"
 #include "wx/buffer.h"      // for wxCharBuffer
 #include "wx/strconv.h"     // for wxConvertXXX() macros and wxMBConv classes
 #include "wx/strvararg.h"
 #include "wx/buffer.h"      // for wxCharBuffer
 #include "wx/strconv.h"     // for wxConvertXXX() macros and wxMBConv classes


@@ -59,7 +59,7 @@
 #include "wx/stringops.h"
 #include "wx/unichar.h"
 
 #include "wx/stringops.h"
 #include "wx/unichar.h"
 

-class WXDLLIMPEXP_BASE wxString;
+class WXDLLIMPEXP_FWD_BASE wxString;

 
 // unless this symbol is predefined to disable the compatibility functions, do
 // use them
 
 // unless this symbol is predefined to disable the compatibility functions, do
 // use them


@@ -78,6 +78,14 @@ class WXDLLIMPEXP_BASE wxString;
 #define   wxMBSTRINGCAST (char *)(const char *)
 #define   wxWCSTRINGCAST (wchar_t *)(const wchar_t *)
 
 #define   wxMBSTRINGCAST (char *)(const char *)
 #define   wxWCSTRINGCAST (wchar_t *)(const wchar_t *)
 

+// like _T(), but for literals in wxString's internal representation, i.e.
+// char* in UTF-8 build and wxChar* otherwise:
+#if wxUSE_UNICODE_UTF8
+    #define wxSTRING_TEXT(str) str
+#else
+    #define wxSTRING_TEXT(str) _T(str)
+#endif
+

 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------


@@ -268,7 +276,7 @@ private:
     size_t m_offset;
     bool m_owned;
 
     size_t m_offset;
     bool m_owned;
 

-    friend class WXDLLIMPEXP_BASE wxString;
+    friend class WXDLLIMPEXP_FWD_BASE wxString;

 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------


@@ -334,14 +342,16 @@ public:
     // We have to implement the version without template arguments manually
     // because of the StringReturnType<> hack, although WX_DEFINE_VARARG_FUNC
     // normally does it itself. It has to be a template so that we can use
     // We have to implement the version without template arguments manually
     // because of the StringReturnType<> hack, although WX_DEFINE_VARARG_FUNC
     // normally does it itself. It has to be a template so that we can use

-    // the hack, even though there's no real template parameter:
-    struct FormatDummyArg {} ;
-
+    // the hack, even though there's no real template parameter. We can't move
+    // it to wxStrig, because it would shadow these versions of Format() then.

     template<typename T>
     inline static typename StringReturnType<T>::type
     template<typename T>
     inline static typename StringReturnType<T>::type

-    Format(const wxFormatString& fmt, FormatDummyArg dummy = FormatDummyArg())
+    Format(const T& fmt)

     {
     {

-        return DoFormatWchar(fmt);
+        // NB: this doesn't compile if T is not (some form of) a string;
+        //     this makes Format's prototype equivalent to
+        //     Format(const wxFormatString& fmt)
+        return DoFormatWchar(wxFormatString(fmt));

     }
 
     // int Printf(const wxString& format, ...);
     }
 
     // int Printf(const wxString& format, ...);


@@ -368,6 +378,43 @@ protected:
     #pragma warning (disable:4275)
 #endif
 
     #pragma warning (disable:4275)
 #endif
 

+#if wxUSE_UNICODE_UTF8
+// see the comment near wxString::iterator for why we need this
+class WXDLLIMPEXP_BASE wxStringIteratorNode
+{
+public:
+    wxStringIteratorNode()
+        : m_str(NULL), m_citer(NULL), m_iter(NULL), m_prev(NULL), m_next(NULL) {}
+    wxStringIteratorNode(const wxString *str,
+                          wxStringImpl::const_iterator *citer)
+        { DoSet(str, citer, NULL); }
+    wxStringIteratorNode(const wxString *str, wxStringImpl::iterator *iter)
+        { DoSet(str, NULL, iter); }
+    ~wxStringIteratorNode()
+        { clear(); }
+
+    inline void set(const wxString *str, wxStringImpl::const_iterator *citer)
+        { clear(); DoSet(str, citer, NULL); }
+    inline void set(const wxString *str, wxStringImpl::iterator *iter)
+        { clear(); DoSet(str, NULL, iter); }
+
+    const wxString *m_str;
+    wxStringImpl::const_iterator *m_citer;
+    wxStringImpl::iterator *m_iter;
+    wxStringIteratorNode *m_prev, *m_next;
+
+private:
+    inline void clear();
+    inline void DoSet(const wxString *str,
+                      wxStringImpl::const_iterator *citer,
+                      wxStringImpl::iterator *iter);
+
+    // the node belongs to a particular iterator instance, it's not copied
+    // when a copy of the iterator is made
+    DECLARE_NO_COPY_CLASS(wxStringIteratorNode)
+};
+#endif // wxUSE_UNICODE_UTF8
+

 class WXDLLIMPEXP_BASE wxString
 #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
                                 : public wxStringPrintfMixin
 class WXDLLIMPEXP_BASE wxString
 #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
                                 : public wxStringPrintfMixin


@@ -511,7 +558,7 @@ private:
       if ( pos == 0 || pos == npos )
           return pos;
       else
       if ( pos == 0 || pos == npos )
           return pos;
       else

-          return const_iterator(m_impl.begin() + pos) - begin();
+          return const_iterator(this, m_impl.begin() + pos) - begin();

   }
 #endif // !wxUSE_UNICODE_UTF8/wxUSE_UNICODE_UTF8
 
   }
 #endif // !wxUSE_UNICODE_UTF8/wxUSE_UNICODE_UTF8
 


@@ -537,8 +584,7 @@ public:
   #define WX_STR_ITERATOR_TAG void /* dummy type */
 #endif
 
   #define WX_STR_ITERATOR_TAG void /* dummy type */
 #endif
 

-  #define WX_STR_ITERATOR_IMPL(iterator_name, pointer_type,                 \
-                               reference_type, reference_ctor)              \
+  #define WX_STR_ITERATOR_IMPL(iterator_name, pointer_type, reference_type) \

       private:                                                              \
           typedef wxStringImpl::iterator_name underlying_iterator;          \
       public:                                                               \
       private:                                                              \
           typedef wxStringImpl::iterator_name underlying_iterator;          \
       public:                                                               \


@@ -548,7 +594,6 @@ public:
           typedef reference_type reference;                                 \
           typedef pointer_type pointer;                                     \
                                                                             \
           typedef reference_type reference;                                 \
           typedef pointer_type pointer;                                     \
                                                                             \

-          reference operator*() const { return reference_ctor; }            \

           reference operator[](size_t n) const { return *(*this + n); }     \
                                                                             \
           iterator_name& operator++()                                       \
           reference operator[](size_t n) const { return *(*this + n); }     \
                                                                             \
           iterator_name& operator++()                                       \


@@ -610,62 +655,119 @@ public:
           /* for internal wxString use only: */                             \
           underlying_iterator impl() const { return m_cur; }                \
                                                                             \
           /* for internal wxString use only: */                             \
           underlying_iterator impl() const { return m_cur; }                \
                                                                             \

-          friend class WXDLLIMPEXP_BASE wxString;                           \
-          friend class WXDLLIMPEXP_BASE wxCStrData;                         \
+          friend class wxString;                                            \
+          friend class wxCStrData;                                          \

                                                                             \
       private:                                                              \
           underlying_iterator m_cur
 
                                                                             \
       private:                                                              \
           underlying_iterator m_cur
 

-  class const_iterator;
+  class WXDLLIMPEXP_FWD_BASE const_iterator;

 
 #if wxUSE_UNICODE_UTF8
 
 #if wxUSE_UNICODE_UTF8

-  class iterator
-  {
-      // NB: In UTF-8 build, (non-const) iterator needs to keep reference
-      //     to the underlying wxStringImpl, because UTF-8 is variable-length
-      //     encoding and changing the value pointer to by an iterator using
-      //     its operator* requires calling wxStringImpl::replace() if the old
-      //     and new values differ in their encoding's length.
+  // NB: In UTF-8 build, (non-const) iterator needs to keep reference
+  //     to the underlying wxStringImpl, because UTF-8 is variable-length
+  //     encoding and changing the value pointer to by an iterator (using
+  //     its operator*) requires calling wxStringImpl::replace() if the old
+  //     and new values differ in their encoding's length.
+  //
+  //     Furthermore, the replace() call may invalid all iterators for the
+  //     string, so we have to keep track of outstanding iterators and update
+  //     them if replace() happens.
+  //
+  //     This is implemented by maintaining linked list of iterators for every
+  //     string and traversing it in wxUniCharRef::operator=(). Head of the
+  //     list is stored in wxString. (FIXME-UTF8)

 
 

-      WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef,
-                           wxUniCharRef::CreateForString(m_str, m_cur));
+  class WXDLLIMPEXP_BASE iterator
+  {
+      WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef);

 
   public:
 
   public:

-      iterator(const iterator& i) : m_cur(i.m_cur), m_str(i.m_str) {}
+      iterator() {}
+      iterator(const iterator& i)
+          : m_cur(i.m_cur), m_node(i.str(), &m_cur) {}
+      iterator& operator=(const iterator& i)
+        { m_cur = i.m_cur; m_node.set(i.str(), &m_cur); return *this; }
+
+      reference operator*()
+        { return wxUniCharRef::CreateForString(m_node, m_cur); }

 
       iterator operator+(int n) const
 
       iterator operator+(int n) const

-        { return iterator(m_str, wxStringOperations::AddToIter(m_cur, n)); }
+        { return iterator(str(), wxStringOperations::AddToIter(m_cur, n)); }

       iterator operator+(size_t n) const
       iterator operator+(size_t n) const

-        { return iterator(m_str, wxStringOperations::AddToIter(m_cur, (int)n)); }
+        { return iterator(str(), wxStringOperations::AddToIter(m_cur, (int)n)); }

       iterator operator-(int n) const
       iterator operator-(int n) const

-        { return iterator(m_str, wxStringOperations::AddToIter(m_cur, -n)); }
+        { return iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); }

       iterator operator-(size_t n) const
       iterator operator-(size_t n) const

-        { return iterator(m_str, wxStringOperations::AddToIter(m_cur, -(int)n)); }
+        { return iterator(str(), wxStringOperations::AddToIter(m_cur, -(int)n)); }

 
   private:
       iterator(wxString *str, underlying_iterator ptr)
 
   private:
       iterator(wxString *str, underlying_iterator ptr)

-          : m_cur(ptr), m_str(str->m_impl) {}
-      iterator(wxStringImpl& str, underlying_iterator ptr)
-          : m_cur(ptr), m_str(str) {}
+          : m_cur(ptr), m_node(str, &m_cur) {}

 
 

-      wxStringImpl& m_str;
+      wxString* str() const { return wx_const_cast(wxString*, m_node.m_str); }
+
+      wxStringIteratorNode m_node;

 
       friend class const_iterator;
   };
 
 
       friend class const_iterator;
   };
 

+  class WXDLLIMPEXP_BASE const_iterator
+  {
+      // NB: reference_type is intentionally value, not reference, the character
+      //     may be encoded differently in wxString data:
+      WX_STR_ITERATOR_IMPL(const_iterator, const wxChar*, wxUniChar);
+
+  public:
+      const_iterator() {}
+      const_iterator(const const_iterator& i)
+          : m_cur(i.m_cur), m_node(i.str(), &m_cur) {}
+      const_iterator(const iterator& i)
+          : m_cur(i.m_cur), m_node(i.str(), &m_cur) {}
+
+      const_iterator& operator=(const const_iterator& i)
+        { m_cur = i.m_cur; m_node.set(i.str(), &m_cur); return *this; }
+      const_iterator& operator=(const iterator& i)
+        { m_cur = i.m_cur; m_node.set(i.str(), &m_cur); return *this; }
+
+      reference operator*() const
+        { return wxStringOperations::DecodeChar(m_cur); }
+
+      const_iterator operator+(int n) const
+        { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, n)); }
+      const_iterator operator+(size_t n) const
+        { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, (int)n)); }
+      const_iterator operator-(int n) const
+        { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); }
+      const_iterator operator-(size_t n) const
+        { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, -(int)n)); }
+
+  private:
+      // for internal wxString use only:
+      const_iterator(const wxString *str, underlying_iterator ptr)
+          : m_cur(ptr), m_node(str, &m_cur) {}
+
+      const wxString* str() const { return m_node.m_str; }
+
+      wxStringIteratorNode m_node;
+  };
+

   size_t IterToImplPos(wxString::iterator i) const
     { return wxStringImpl::const_iterator(i.impl()) - m_impl.begin(); }
 
 #else // !wxUSE_UNICODE_UTF8
 
   size_t IterToImplPos(wxString::iterator i) const
     { return wxStringImpl::const_iterator(i.impl()) - m_impl.begin(); }
 
 #else // !wxUSE_UNICODE_UTF8
 

-  class iterator
+  class WXDLLIMPEXP_BASE iterator

   {
   {

-      WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef,
-                           wxUniCharRef::CreateForString(m_cur));
+      WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef);

 
   public:
 
   public:

+      iterator() {}

       iterator(const iterator& i) : m_cur(i.m_cur) {}
 
       iterator(const iterator& i) : m_cur(i.m_cur) {}
 

+      reference operator*()
+        { return wxUniCharRef::CreateForString(m_cur); }
+

       iterator operator+(int n) const
         { return iterator(wxStringOperations::AddToIter(m_cur, n)); }
       iterator operator+(size_t n) const
       iterator operator+(int n) const
         { return iterator(wxStringOperations::AddToIter(m_cur, n)); }
       iterator operator+(size_t n) const


@@ -682,19 +784,21 @@ public:
 
       friend class const_iterator;
   };
 
       friend class const_iterator;
   };

-#endif // wxUSE_UNICODE_UTF8/!wxUSE_UNICODE_UTF8

 
 

-  class const_iterator
+  class WXDLLIMPEXP_BASE const_iterator

   {
       // NB: reference_type is intentionally value, not reference, the character
       //     may be encoded differently in wxString data:
   {
       // NB: reference_type is intentionally value, not reference, the character
       //     may be encoded differently in wxString data:

-      WX_STR_ITERATOR_IMPL(const_iterator, const wxChar*, wxUniChar,
-                           wxStringOperations::DecodeChar(m_cur));
+      WX_STR_ITERATOR_IMPL(const_iterator, const wxChar*, wxUniChar);

 
   public:
 
   public:

+      const_iterator() {}

       const_iterator(const const_iterator& i) : m_cur(i.m_cur) {}
       const_iterator(const iterator& i) : m_cur(i.m_cur) {}
 
       const_iterator(const const_iterator& i) : m_cur(i.m_cur) {}
       const_iterator(const iterator& i) : m_cur(i.m_cur) {}
 

+      reference operator*() const
+        { return wxStringOperations::DecodeChar(m_cur); }
+

       const_iterator operator+(int n) const
         { return const_iterator(wxStringOperations::AddToIter(m_cur, n)); }
       const_iterator operator+(size_t n) const
       const_iterator operator+(int n) const
         { return const_iterator(wxStringOperations::AddToIter(m_cur, n)); }
       const_iterator operator+(size_t n) const


@@ -707,7 +811,10 @@ public:
   private:
       // for internal wxString use only:
       const_iterator(underlying_iterator ptr) : m_cur(ptr) {}
   private:
       // for internal wxString use only:
       const_iterator(underlying_iterator ptr) : m_cur(ptr) {}

+      const_iterator(const wxString *WXUNUSED(str), underlying_iterator ptr)
+          : m_cur(ptr) {}

   };
   };

+#endif // wxUSE_UNICODE_UTF8/!wxUSE_UNICODE_UTF8

 
   #undef WX_STR_ITERATOR_TAG
   #undef WX_STR_ITERATOR_IMPL
 
   #undef WX_STR_ITERATOR_TAG
   #undef WX_STR_ITERATOR_IMPL


@@ -727,6 +834,7 @@ public:
       typedef typename T::reference reference;
       typedef typename T::pointer *pointer;
 
       typedef typename T::reference reference;
       typedef typename T::pointer *pointer;
 

+      reverse_iterator_impl() {}

       reverse_iterator_impl(iterator_type i) : m_cur(i) {}
       reverse_iterator_impl(const reverse_iterator_impl& ri)
           : m_cur(ri.m_cur) {}
       reverse_iterator_impl(iterator_type i) : m_cur(i) {}
       reverse_iterator_impl(const reverse_iterator_impl& ri)
           : m_cur(ri.m_cur) {}


@@ -792,7 +900,8 @@ private:
   // wxCStrData) to an iterator into the string
   static const_iterator CreateConstIterator(const wxCStrData& data)
   {
   // wxCStrData) to an iterator into the string
   static const_iterator CreateConstIterator(const wxCStrData& data)
   {

-      return const_iterator(data.m_str->begin() + data.m_offset);
+      return const_iterator(data.m_str,
+                            (data.m_str->begin() + data.m_offset).impl());

   }
 
   // in UTF-8 STL build, creation from std::string requires conversion under
   }
 
   // in UTF-8 STL build, creation from std::string requires conversion under


@@ -825,7 +934,7 @@ public:
   wxString(const wxString& stringSrc) : m_impl(stringSrc.m_impl) { }
 
     // string containing nRepeat copies of ch
   wxString(const wxString& stringSrc) : m_impl(stringSrc.m_impl) { }
 
     // string containing nRepeat copies of ch

-  wxString(wxUniChar ch, size_t nRepeat = 1)
+  wxString(wxUniChar ch, size_t nRepeat = 1 )

     { assign(nRepeat, ch); }
   wxString(size_t nRepeat, wxUniChar ch)
     { assign(nRepeat, ch); }
     { assign(nRepeat, ch); }
   wxString(size_t nRepeat, wxUniChar ch)
     { assign(nRepeat, ch); }


@@ -917,7 +1026,12 @@ public:
     wxString(const std::string& str)
         { assign(str.c_str(), str.length()); }
   #endif
     wxString(const std::string& str)
         { assign(str.c_str(), str.length()); }
   #endif

+#endif // wxUSE_STD_STRING

 
 

+  // Unlike ctor from std::string, we provide conversion to std::string only
+  // if wxUSE_STL and not merely wxUSE_STD_STRING (which is on by default),
+  // because it conflicts with operator const char/wchar_t*:
+#if wxUSE_STL

   #if wxUSE_UNICODE_WCHAR && wxUSE_STL_BASED_WXSTRING
     // wxStringImpl is std::string in the encoding we want
     operator const wxStdWideString&() const { return m_impl; }
   #if wxUSE_UNICODE_WCHAR && wxUSE_STL_BASED_WXSTRING
     // wxStringImpl is std::string in the encoding we want
     operator const wxStdWideString&() const { return m_impl; }


@@ -940,10 +1054,10 @@ public:
 #endif // wxUSE_STL
 
   // first valid index position
 #endif // wxUSE_STL
 
   // first valid index position

-  const_iterator begin() const { return const_iterator(m_impl.begin()); }
+  const_iterator begin() const { return const_iterator(this, m_impl.begin()); }

   iterator begin() { return iterator(this, m_impl.begin()); }
   // position one after the last valid one
   iterator begin() { return iterator(this, m_impl.begin()); }
   // position one after the last valid one

-  const_iterator end() const { return const_iterator(m_impl.end()); }
+  const_iterator end() const { return const_iterator(this, m_impl.end()); }

   iterator end() { return iterator(this, m_impl.end()); }
 
   // first element of the reversed string
   iterator end() { return iterator(this, m_impl.end()); }
 
   // first element of the reversed string


@@ -974,19 +1088,25 @@ public:
 
   void resize(size_t nSize, wxUniChar ch = wxT('\0'))
   {
 
   void resize(size_t nSize, wxUniChar ch = wxT('\0'))
   {

+    const size_t len = length();
+    if ( nSize == len)
+        return;
+

 #if wxUSE_UNICODE_UTF8
 #if wxUSE_UNICODE_UTF8

-    if ( !ch.IsAscii() )
+    if ( nSize < len )

     {
     {

-        size_t len = length();
-        if ( nSize == len)
-            return;
-        else if ( nSize < len )
-            erase(nSize);
-        else
-            append(nSize - len, ch);
+        // we can't use wxStringImpl::resize() for truncating the string as it
+        // counts in bytes, not characters
+        erase(nSize);
+        return;

     }
     }

+
+    // we also can't use (presumably more efficient) resize() if we have to
+    // append characters taking more than one byte
+    if ( !ch.IsAscii() )
+        append(nSize - len, ch);

     else
     else

-#endif
+#endif // wxUSE_UNICODE_UTF8

         m_impl.resize(nSize, (wxStringCharType)ch);
   }
 
         m_impl.resize(nSize, (wxStringCharType)ch);
   }
 


@@ -1090,6 +1210,13 @@ public:
 
     // implicit conversion to C string
     operator wxCStrData() const { return c_str(); }
 
     // implicit conversion to C string
     operator wxCStrData() const { return c_str(); }

+
+    // the first two operators conflict with operators for conversion to
+    // std::string and they must be disabled in STL build; the next one only
+    // makes sense if conversions to char* are also defined and not defining it
+    // in STL build also helps us to get more clear error messages for the code
+    // which relies on implicit conversion to char* in STL build
+#if !wxUSE_STL

     operator const char*() const { return c_str(); }
     operator const wchar_t*() const { return c_str(); }
 
     operator const char*() const { return c_str(); }
     operator const wchar_t*() const { return c_str(); }
 


@@ -1097,6 +1224,7 @@ public:
     // wxWidgets versions: this is the same as conversion to const char * so it
     // may fail!
     operator const void*() const { return c_str(); }
     // wxWidgets versions: this is the same as conversion to const char * so it
     // may fail!
     operator const void*() const { return c_str(); }

+#endif // wxUSE_STL

 
     // identical to c_str(), for MFC compatibility
     const wxCStrData GetData() const { return c_str(); }
 
     // identical to c_str(), for MFC compatibility
     const wxCStrData GetData() const { return c_str(); }


@@ -1119,24 +1247,42 @@ public:
     // the behaviour of these functions with the strings containing anything
     // else than 7 bit ASCII characters is undefined, use at your own risk.
 #if wxUSE_UNICODE
     // the behaviour of these functions with the strings containing anything
     // else than 7 bit ASCII characters is undefined, use at your own risk.
 #if wxUSE_UNICODE

-    static wxString FromAscii(const char *ascii);  // string
-    static wxString FromAscii(const char ascii);   // char
+    static wxString FromAscii(const char *ascii, size_t len);
+    static wxString FromAscii(const char *ascii);
+    static wxString FromAscii(char ascii);

     const wxCharBuffer ToAscii() const;
 #else // ANSI
     static wxString FromAscii(const char *ascii) { return wxString( ascii ); }
     const wxCharBuffer ToAscii() const;
 #else // ANSI
     static wxString FromAscii(const char *ascii) { return wxString( ascii ); }

-    static wxString FromAscii(const char ascii) { return wxString( ascii ); }
+    static wxString FromAscii(const char *ascii, size_t len)
+        { return wxString( ascii, len ); }
+    static wxString FromAscii(char ascii) { return wxString( ascii ); }

     const char *ToAscii() const { return c_str(); }
 #endif // Unicode/!Unicode
 
     const char *ToAscii() const { return c_str(); }
 #endif // Unicode/!Unicode
 

+    // also provide unsigned char overloads as signed/unsigned doesn't matter
+    // for 7 bit ASCII characters
+    static wxString FromAscii(const unsigned char *ascii)
+        { return FromAscii((const char *)ascii); }
+    static wxString FromAscii(const unsigned char *ascii, size_t len)
+        { return FromAscii((const char *)ascii, len); }
+

     // conversion to/from UTF-8:
 #if wxUSE_UNICODE_UTF8
     static wxString FromUTF8(const char *utf8)
     {
     // conversion to/from UTF-8:
 #if wxUSE_UNICODE_UTF8
     static wxString FromUTF8(const char *utf8)
     {

+      if ( !utf8 )
+          return wxEmptyString;
+

       wxASSERT( wxStringOperations::IsValidUtf8String(utf8) );
       return FromImpl(wxStringImpl(utf8));
     }
     static wxString FromUTF8(const char *utf8, size_t len)
     {
       wxASSERT( wxStringOperations::IsValidUtf8String(utf8) );
       return FromImpl(wxStringImpl(utf8));
     }
     static wxString FromUTF8(const char *utf8, size_t len)
     {

+      if ( !utf8 )
+          return wxEmptyString;
+      if ( len == npos )
+          return FromUTF8(utf8);
+

       wxASSERT( wxStringOperations::IsValidUtf8String(utf8, len) );
       return FromImpl(wxStringImpl(utf8, len));
     }
       wxASSERT( wxStringOperations::IsValidUtf8String(utf8, len) );
       return FromImpl(wxStringImpl(utf8, len));
     }


@@ -1226,11 +1372,7 @@ public:
 #if wxUSE_WCHAR_T
     const wxWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const;
 #endif // wxUSE_WCHAR_T
 #if wxUSE_WCHAR_T
     const wxWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const;
 #endif // wxUSE_WCHAR_T

-#ifdef __WXOSX__

     const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); }
     const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); }

-#else
-    const wxChar* fn_str() const { return c_str(); }
-#endif

 #endif // Unicode/ANSI
 
   // overloaded assignment
 #endif // Unicode/ANSI
 
   // overloaded assignment


@@ -1435,11 +1577,7 @@ public:
   bool IsSameAs(const wxWCharBuffer& str, bool compareWithCase = true) const
     { return IsSameAs(str.data(), compareWithCase); }
     // comparison with a single character: returns true if equal
   bool IsSameAs(const wxWCharBuffer& str, bool compareWithCase = true) const
     { return IsSameAs(str.data(), compareWithCase); }
     // comparison with a single character: returns true if equal

-  bool IsSameAs(wxUniChar c, bool compareWithCase = true) const
-    {
-      return (length() == 1) && (compareWithCase ? GetChar(0u) == c
-                              : wxToupper(GetChar(0u)) == wxToupper(c));
-    }
+  bool IsSameAs(wxUniChar c, bool compareWithCase = true) const;

   // FIXME-UTF8: remove these overloads
   bool IsSameAs(wxUniCharRef c, bool compareWithCase = true) const
     { return IsSameAs(wxUniChar(c), compareWithCase); }
   // FIXME-UTF8: remove these overloads
   bool IsSameAs(wxUniCharRef c, bool compareWithCase = true) const
     { return IsSameAs(wxUniChar(c), compareWithCase); }


@@ -2449,6 +2587,12 @@ private:
 private:
   wxStringImpl m_impl;
 
 private:
   wxStringImpl m_impl;
 

+#ifdef __VISUALC__
+    // "struct 'ConvertedBuffer<T>' needs to have dll-interface to be used by
+    // clients of class 'wxString'" - this is private, we don't care
+    #pragma warning (disable:4251)
+#endif
+

   // buffers for compatibility conversion from (char*)c_str() and
   // (wchar_t*)c_str():
   // FIXME-UTF8: bechmark various approaches to keeping compatibility buffers
   // buffers for compatibility conversion from (char*)c_str() and
   // (wchar_t*)c_str():
   // FIXME-UTF8: bechmark various approaches to keeping compatibility buffers


@@ -2477,9 +2621,34 @@ private:
   ConvertedBuffer<wchar_t> m_convertedToWChar;
 #endif
 
   ConvertedBuffer<wchar_t> m_convertedToWChar;
 #endif
 

-  friend class WXDLLIMPEXP_BASE wxCStrData;
-  friend class wxImplStringBuffer;
-  friend class wxImplStringBufferLength;
+#ifdef __VISUALC__
+    #pragma warning (default:4251)
+#endif
+
+#if wxUSE_UNICODE_UTF8
+  // FIXME-UTF8: (try to) move this elsewhere (TLS) or solve differently
+  //             assigning to character pointer to by wxString::interator may
+  //             change the underlying wxStringImpl iterator, so we have to
+  //             keep track of all iterators and update them as necessary:
+  struct wxStringIteratorNodeHead
+  {
+      wxStringIteratorNodeHead() : ptr(NULL) {}
+      wxStringIteratorNode *ptr;
+
+      // copying is disallowed as it would result in more than one pointer into
+      // the same linked list
+      DECLARE_NO_COPY_CLASS(wxStringIteratorNodeHead)
+  };
+
+  wxStringIteratorNodeHead m_iterators;
+
+  friend class WXDLLIMPEXP_FWD_BASE wxStringIteratorNode;
+  friend class WXDLLIMPEXP_FWD_BASE wxUniCharRef;
+#endif // wxUSE_UNICODE_UTF8
+
+  friend class WXDLLIMPEXP_FWD_BASE wxCStrData;
+  friend class wxStringInternalBuffer;
+  friend class wxStringInternalBufferLength;

 };
 
 #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
 };
 
 #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN


@@ -2532,16 +2701,7 @@ inline wxString operator+(wchar_t ch, const wxString& string)
     { return wxUniChar(ch) + string; }
 
 
     { return wxUniChar(ch) + string; }
 
 

-#if wxUSE_STL_BASED_WXSTRING
-    // return an empty wxString (not very useful with wxUSE_STL == 1)
-    inline const wxString wxGetEmptyString() { return wxString(); }
-#else // !wxUSE_STL_BASED_WXSTRING
-    // return an empty wxString (more efficient than wxString() here)
-    inline const wxString& wxGetEmptyString()
-    {
-        return *(wxString *)&wxEmptyString;
-    }
-#endif // wxUSE_STL_BASED_WXSTRING/!wxUSE_STL_BASED_WXSTRING
+#define wxGetEmptyString() wxString()

 
 // ----------------------------------------------------------------------------
 // wxStringBuffer: a tiny class allowing to get a writable pointer into string
 
 // ----------------------------------------------------------------------------
 // wxStringBuffer: a tiny class allowing to get a writable pointer into string


@@ -2550,16 +2710,16 @@ inline wxString operator+(wchar_t ch, const wxString& string)
 #if !wxUSE_STL_BASED_WXSTRING
 // string buffer for direct access to string data in their native
 // representation:
 #if !wxUSE_STL_BASED_WXSTRING
 // string buffer for direct access to string data in their native
 // representation:

-class wxImplStringBuffer
+class wxStringInternalBuffer

 {
 public:
     typedef wxStringCharType CharType;
 
 {
 public:
     typedef wxStringCharType CharType;
 

-    wxImplStringBuffer(wxString& str, size_t lenWanted = 1024)
+    wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024)

         : m_str(str), m_buf(NULL)
         { m_buf = m_str.DoGetWriteBuf(lenWanted); }
 
         : m_str(str), m_buf(NULL)
         { m_buf = m_str.DoGetWriteBuf(lenWanted); }
 

-    ~wxImplStringBuffer() { m_str.DoUngetWriteBuf(); }
+    ~wxStringInternalBuffer() { m_str.DoUngetWriteBuf(); }

 
     operator wxStringCharType*() const { return m_buf; }
 
 
     operator wxStringCharType*() const { return m_buf; }
 


@@ -2567,22 +2727,22 @@ private:
     wxString&         m_str;
     wxStringCharType *m_buf;
 
     wxString&         m_str;
     wxStringCharType *m_buf;
 

-    DECLARE_NO_COPY_CLASS(wxImplStringBuffer)
+    DECLARE_NO_COPY_CLASS(wxStringInternalBuffer)

 };
 
 };
 

-class wxImplStringBufferLength
+class wxStringInternalBufferLength

 {
 public:
     typedef wxStringCharType CharType;
 
 {
 public:
     typedef wxStringCharType CharType;
 

-    wxImplStringBufferLength(wxString& str, size_t lenWanted = 1024)
+    wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024)

         : m_str(str), m_buf(NULL), m_len(0), m_lenSet(false)
     {
         m_buf = m_str.DoGetWriteBuf(lenWanted);
         wxASSERT(m_buf != NULL);
     }
 
         : m_str(str), m_buf(NULL), m_len(0), m_lenSet(false)
     {
         m_buf = m_str.DoGetWriteBuf(lenWanted);
         wxASSERT(m_buf != NULL);
     }
 

-    ~wxImplStringBufferLength()
+    ~wxStringInternalBufferLength()

     {
         wxASSERT(m_lenSet);
         m_str.DoUngetWriteBuf(m_len);
     {
         wxASSERT(m_lenSet);
         m_str.DoUngetWriteBuf(m_len);


@@ -2597,13 +2757,13 @@ private:
     size_t            m_len;
     bool              m_lenSet;
 
     size_t            m_len;
     bool              m_lenSet;
 

-    DECLARE_NO_COPY_CLASS(wxImplStringBufferLength)
+    DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength)

 };
 
 #endif // !wxUSE_STL_BASED_WXSTRING
 
 template<typename T>
 };
 
 #endif // !wxUSE_STL_BASED_WXSTRING
 
 template<typename T>

-class wxStringTypeBufferBase
+class WXDLLIMPEXP_BASE wxStringTypeBufferBase

 {
 public:
     typedef T CharType;
 {
 public:
     typedef T CharType;


@@ -2621,7 +2781,7 @@ protected:
 };
 
 template<typename T>
 };
 
 template<typename T>

-class wxStringTypeBufferLengthBase
+class WXDLLIMPEXP_BASE wxStringTypeBufferLengthBase

 {
 public:
     typedef T CharType;
 {
 public:
     typedef T CharType;


@@ -2630,12 +2790,6 @@ public:
         : m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false)
         { }
 
         : m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false)
         { }
 

-    ~wxStringTypeBufferLengthBase()
-    {
-        wxASSERT(m_lenSet);
-        m_str.assign(m_buf.data(), m_len);
-    }
-

     operator CharType*() { return m_buf.data(); }
     void SetLength(size_t length) { m_len = length; m_lenSet = true; }
 
     operator CharType*() { return m_buf.data(); }
     void SetLength(size_t length) { m_len = length; m_lenSet = true; }
 


@@ -2677,30 +2831,37 @@ public:
 };
 
 #if wxUSE_STL_BASED_WXSTRING
 };
 
 #if wxUSE_STL_BASED_WXSTRING

-class wxImplStringBuffer : public wxStringTypeBufferBase<wxStringCharType>
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase<wxStringCharType> )
+
+class wxStringInternalBuffer : public wxStringTypeBufferBase<wxStringCharType>

 {
 public:
 {
 public:

-    wxImplStringBuffer(wxString& str, size_t lenWanted = 1024)
+    wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024)

         : wxStringTypeBufferBase<wxStringCharType>(str, lenWanted) {}
         : wxStringTypeBufferBase<wxStringCharType>(str, lenWanted) {}

-    ~wxImplStringBuffer()
+    ~wxStringInternalBuffer()

         { m_str.m_impl.assign(m_buf.data()); }
 
         { m_str.m_impl.assign(m_buf.data()); }
 

-    DECLARE_NO_COPY_CLASS(wxImplStringBuffer)
+    DECLARE_NO_COPY_CLASS(wxStringInternalBuffer)

 };
 
 };
 

-class wxImplStringBufferLength : public wxStringTypeBufferLengthBase<wxStringCharType>
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE(
+    wxStringTypeBufferLengthBase<wxStringCharType> )
+
+class wxStringInternalBufferLength
+    : public wxStringTypeBufferLengthBase<wxStringCharType>

 {
 public:
 {
 public:

-    wxImplStringBufferLength(wxString& str, size_t lenWanted = 1024)
+    wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024)

         : wxStringTypeBufferLengthBase<wxStringCharType>(str, lenWanted) {}
 
         : wxStringTypeBufferLengthBase<wxStringCharType>(str, lenWanted) {}
 

-    ~wxImplStringBufferLength()
+    ~wxStringInternalBufferLength()

     {
         wxASSERT(m_lenSet);
         m_str.m_impl.assign(m_buf.data(), m_len);
     }
 
     {
         wxASSERT(m_lenSet);
         m_str.m_impl.assign(m_buf.data(), m_len);
     }
 

-    DECLARE_NO_COPY_CLASS(wxImplStringBufferLength)
+    DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength)

 };
 #endif // wxUSE_STL_BASED_WXSTRING
 
 };
 #endif // wxUSE_STL_BASED_WXSTRING
 


@@ -2709,10 +2870,42 @@ public:
 typedef wxStringTypeBuffer<wxChar>        wxStringBuffer;
 typedef wxStringTypeBufferLength<wxChar>  wxStringBufferLength;
 #else // if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
 typedef wxStringTypeBuffer<wxChar>        wxStringBuffer;
 typedef wxStringTypeBufferLength<wxChar>  wxStringBufferLength;
 #else // if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8

-typedef wxImplStringBuffer                wxStringBuffer;
-typedef wxImplStringBufferLength          wxStringBufferLength;
+typedef wxStringInternalBuffer                wxStringBuffer;
+typedef wxStringInternalBufferLength          wxStringBufferLength;

 #endif // !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
 
 #endif // !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
 

+#if wxUSE_UNICODE_UTF8
+typedef wxStringInternalBuffer                wxUTF8StringBuffer;
+typedef wxStringInternalBufferLength          wxUTF8StringBufferLength;
+#elif wxUSE_UNICODE_WCHAR
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase<char> )
+
+class WXDLLIMPEXP_BASE wxUTF8StringBuffer : public wxStringTypeBufferBase<char>
+{
+public:
+    wxUTF8StringBuffer(wxString& str, size_t lenWanted = 1024)
+        : wxStringTypeBufferBase<char>(str, lenWanted) {}
+    ~wxUTF8StringBuffer();
+
+    DECLARE_NO_COPY_CLASS(wxUTF8StringBuffer)
+};
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferLengthBase<char> )
+
+class WXDLLIMPEXP_BASE wxUTF8StringBufferLength
+    : public wxStringTypeBufferLengthBase<char>
+{
+public:
+    wxUTF8StringBufferLength(wxString& str, size_t lenWanted = 1024)
+        : wxStringTypeBufferLengthBase<char>(str, lenWanted) {}
+    ~wxUTF8StringBufferLength();
+
+    DECLARE_NO_COPY_CLASS(wxUTF8StringBufferLength)
+};
+#endif // wxUSE_UNICODE_UTF8/wxUSE_UNICODE_WCHAR
+
+

 // ---------------------------------------------------------------------------
 // wxString comparison functions: operator versions are always case sensitive
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // wxString comparison functions: operator versions are always case sensitive
 // ---------------------------------------------------------------------------


@@ -2738,7 +2931,15 @@ inline bool operator<=(const wxString& s1, const wxString& s2)
 inline bool operator>=(const wxString& s1, const wxString& s2)
     { return s1.Cmp(s2) >= 0; }
 
 inline bool operator>=(const wxString& s1, const wxString& s2)
     { return s1.Cmp(s2) >= 0; }
 

-#if wxUSE_UNICODE
+inline bool operator==(const wxString& s1, const wxCStrData& s2)
+    { return s1 == s2.AsString(); }
+inline bool operator==(const wxCStrData& s1, const wxString& s2)
+    { return s1.AsString() == s2; }
+inline bool operator!=(const wxString& s1, const wxCStrData& s2)
+    { return s1 != s2.AsString(); }
+inline bool operator!=(const wxCStrData& s1, const wxString& s2)
+    { return s1.AsString() != s2; }
+

 inline bool operator==(const wxString& s1, const wxWCharBuffer& s2)
     { return (s1.Cmp((const wchar_t *)s2) == 0); }
 inline bool operator==(const wxWCharBuffer& s1, const wxString& s2)
 inline bool operator==(const wxString& s1, const wxWCharBuffer& s2)
     { return (s1.Cmp((const wchar_t *)s2) == 0); }
 inline bool operator==(const wxWCharBuffer& s1, const wxString& s2)


@@ -2747,7 +2948,7 @@ inline bool operator!=(const wxString& s1, const wxWCharBuffer& s2)
     { return (s1.Cmp((const wchar_t *)s2) != 0); }
 inline bool operator!=(const wxWCharBuffer& s1, const wxString& s2)
     { return (s2.Cmp((const wchar_t *)s1) != 0); }
     { return (s1.Cmp((const wchar_t *)s2) != 0); }
 inline bool operator!=(const wxWCharBuffer& s1, const wxString& s2)
     { return (s2.Cmp((const wchar_t *)s1) != 0); }

-#else // !wxUSE_UNICODE
+

 inline bool operator==(const wxString& s1, const wxCharBuffer& s2)
     { return (s1.Cmp((const char *)s2) == 0); }
 inline bool operator==(const wxCharBuffer& s1, const wxString& s2)
 inline bool operator==(const wxString& s1, const wxCharBuffer& s2)
     { return (s1.Cmp((const char *)s2) == 0); }
 inline bool operator==(const wxCharBuffer& s1, const wxString& s2)


@@ -2756,19 +2957,16 @@ inline bool operator!=(const wxString& s1, const wxCharBuffer& s2)
     { return (s1.Cmp((const char *)s2) != 0); }
 inline bool operator!=(const wxCharBuffer& s1, const wxString& s2)
     { return (s2.Cmp((const char *)s1) != 0); }
     { return (s1.Cmp((const char *)s2) != 0); }
 inline bool operator!=(const wxCharBuffer& s1, const wxString& s2)
     { return (s2.Cmp((const char *)s1) != 0); }

-#endif // wxUSE_UNICODE/!wxUSE_UNICODE

 
 

-#if wxUSE_UNICODE

 inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
     { return string + (const wchar_t *)buf; }
 inline wxString operator+(const wxWCharBuffer& buf, const wxString& string)
     { return (const wchar_t *)buf + string; }
 inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
     { return string + (const wchar_t *)buf; }
 inline wxString operator+(const wxWCharBuffer& buf, const wxString& string)
     { return (const wchar_t *)buf + string; }

-#else // !wxUSE_UNICODE
+

 inline wxString operator+(const wxString& string, const wxCharBuffer& buf)
     { return string + (const char *)buf; }
 inline wxString operator+(const wxCharBuffer& buf, const wxString& string)
     { return (const char *)buf + string; }
 inline wxString operator+(const wxString& string, const wxCharBuffer& buf)
     { return string + (const char *)buf; }
 inline wxString operator+(const wxCharBuffer& buf, const wxString& string)
     { return (const char *)buf + string; }

-#endif // wxUSE_UNICODE/!wxUSE_UNICODE

 
 // comparison with char
 inline bool operator==(const wxUniChar& c, const wxString& s) { return s.IsSameAs(c); }
 
 // comparison with char
 inline bool operator==(const wxUniChar& c, const wxString& s) { return s.IsSameAs(c); }


@@ -2830,7 +3028,15 @@ WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxCharBuffer&);
 WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxWCharBuffer&);
 #endif
 
 WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxWCharBuffer&);
 #endif
 

-#endif  // wxSTD_STRING_COMPATIBILITY
+#if wxUSE_UNICODE && defined(HAVE_WOSTREAM)
+
+WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxString&);
+WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxCStrData&);
+WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxWCharBuffer&);
+
+#endif  // wxUSE_UNICODE && defined(HAVE_WOSTREAM)
+
+#endif  // wxUSE_STD_IOSTREAM

 
 // ---------------------------------------------------------------------------
 // wxCStrData implementation
 
 // ---------------------------------------------------------------------------
 // wxCStrData implementation


@@ -2851,7 +3057,7 @@ inline wxCStrData::wxCStrData(const wxCStrData& data)
 inline wxCStrData::~wxCStrData()
 {
     if ( m_owned )
 inline wxCStrData::~wxCStrData()
 {
     if ( m_owned )

-        delete m_str;
+        delete wx_const_cast(wxString*, m_str); // cast to silence warnings

 }
 
 // simple cases for AsChar() and AsWChar(), the complicated ones are
 }
 
 // simple cases for AsChar() and AsWChar(), the complicated ones are


@@ -2958,12 +3164,54 @@ inline wxWCharBuffer::wxWCharBuffer(const wxCStrData& cstr)
 {
 }
 
 {
 }
 

+#if wxUSE_UNICODE_UTF8
+// ----------------------------------------------------------------------------
+// implementation of wxStringIteratorNode inline methods
+// ----------------------------------------------------------------------------
+
+void wxStringIteratorNode::DoSet(const wxString *str,
+                                 wxStringImpl::const_iterator *citer,
+                                 wxStringImpl::iterator *iter)
+{
+    m_prev = NULL;
+    m_iter = iter;
+    m_citer = citer;
+    m_str = str;
+    if ( str )
+    {
+        m_next = str->m_iterators.ptr;
+        wx_const_cast(wxString*, m_str)->m_iterators.ptr = this;
+        if ( m_next )
+            m_next->m_prev = this;
+    }
+    else
+    {
+        m_next = NULL;
+    }
+}
+
+void wxStringIteratorNode::clear()
+{
+    if ( m_next )
+        m_next->m_prev = m_prev;
+    if ( m_prev )
+        m_prev->m_next = m_next;
+    else if ( m_str ) // first in the list
+        wx_const_cast(wxString*, m_str)->m_iterators.ptr = m_next;
+
+    m_next = m_prev = NULL;
+    m_citer = NULL;
+    m_iter = NULL;
+    m_str = NULL;
+}
+#endif // wxUSE_UNICODE_UTF8
+

 #if WXWIN_COMPATIBILITY_2_8
 #if WXWIN_COMPATIBILITY_2_8

-    // lot of code out there doesn't explicitly include wx/wxchar.h, but uses
+    // lot of code out there doesn't explicitly include wx/crt.h, but uses

     // CRT wrappers that are now declared in wx/wxcrt.h and wx/wxcrtvararg.h,
     // so let's include this header now that wxString is defined and it's safe
     // to do it:
     // CRT wrappers that are now declared in wx/wxcrt.h and wx/wxcrtvararg.h,
     // so let's include this header now that wxString is defined and it's safe
     // to do it:

-    #include "wx/wxchar.h"
+    #include "wx/crt.h"

 #endif
 
 #endif  // _WX_WXSTRING_H_
 #endif
 
 #endif  // _WX_WXSTRING_H_